A textbook developed in the ’60s and ’70s for use in several advanced mathematics courses at Harvey Mudd College. From the site: The purpose of this work is to give the college upper class (or graduate) student a glimpse into some important areas of applicable mathematics along with some experience in traditional and contemporary applications. The approach is firmly grounded in mathematics; proofs and models of real-world phenomena are both done carefully. Mathematicians in particular should feel comfortable using this book in service courses for engineers and physicists, as well as in courses for mathematics majors. The physics or engineering instructor will find in the book more of the mathematical foundations of applied analysis and related areas than in most books of similar scope at this level.